Method for replacing a heart valve
A method for replacing a native heart valve in need thereof comprises delivering to the native heart valve an apparatus comprising a valve member, a connecting member, and an anchor member suitable for anchoring the apparatus. The valve member reversibly moves between an open position and a closed position to augment or replace the function of the native valve leaflets, thereby reducing valve regurgitation. Some embodiments include a stent that is positioned in the native heart valve with the valve member disposed therein.
1. A method for replacing a function of a native heart valve, the method comprising:
compressing a valve-replacement apparatus to a small diameter;
delivering the valve-replacement apparatus to a native mitral valve using a catheter;
expanding a stent of the valve-replacement apparatus within the native mitral valve, the stent at least partially covered, a valve member disposed within the stent, the valve member including a plurality of pericardial tissue flaps arranged side-by-side with adjacent surfaces having coaptation areas in close contact with each other to prevent leakage between the flaps;
extending a portion of a first end of a flexible connecting member through a tissue wall, a second end of the connecting member coupled to an outflow portion of the valve-replacement apparatus; and
securing a disk-shaped element to the connecting member, the disk-shaped element contacting the tissue wall, to fix a position of the valve member within the native mitral valve.
2. The method of claim 1 , wherein extending the portion of the first end of a flexible connecting member through the tissue wall includes extending the portion of the first end of a flexible connecting member through an interventricular muscular septum or a muscular ventricular wall.
3. The method of claim 1 , wherein the disk-shaped element is a first disk-shaped element, the method further comprising securing a second disk-shaped element to the connecting member, the first and second disk-shaped elements engaging opposite sides of the tissue wall.
4. A method for replacing a function of a native heart valve, the method comprising:
expanding a stent of a valve-replacement apparatus within a native heart valve, a valve member disposed within the stent, the valve member including a plurality of flaps arranged side-by-side with adjacent surfaces having coaptation areas in close contact with each other to prevent leakage between the flaps; and
anchoring a first end portion of a connecting member to a tissue wall to fix a position of the valve member within the native heart valve, a second end of the connecting member coupled to an outflow portion of the replacement valve.
5. The method of claim 4 , wherein expanding the stent includes expanding an at least partially covered stent.
6. The method of claim 4 , wherein expanding the stent including the plurality of flaps comprises expanding a stent including a plurality of flaps comprising pericardial tissue.
7. The method of claim 4 , wherein anchoring the first end of the connecting member to the tissue wall includes engaging an anchoring member with an arterial vessel wall, a venous vessel wall, an atrial septum, an interventricular muscular septum, a muscular ventricular wall, or an atrial wall.
8. The method of claim 4 , wherein expanding the stent includes expanding a first stent, and wherein anchoring the first end of the connecting member to a tissue wall includes expanding a second stent coupled to the first end of the connecting member.
9. The method of claim 4 , wherein anchoring the first end of the connecting member to a tissue wall includes extending a portion of the connecting member through the tissue wall and securing a disk-shaped element to the connecting member, the disk-shaped element contacting the tissue wall.
10. The method of claim 9 , wherein the disk-shaped element is a first disk-shaped element, the method further comprising securing a second disk-shaped element to the connecting member, the first and second disk-shaped elements engaging opposite sides of the tissue wall.
11. The method of claim 4 , wherein anchoring the first end of the connecting member to the tissue wall includes engaging the tissue wall with a hook, barb, or spike.
12. The method of claim 4 , wherein expanding the stent of the valve-replacement apparatus within the native heart valve includes expanding the stent of the valve-replacement apparatus within a native aortic valve.
13. The method of claim 4 , wherein expanding the stent of the valve-replacement apparatus within the native heart valve includes expanding the stent of the valve-replacement apparatus within a native mitral valve.
14. The method of claim 4 , wherein anchoring the first end of the connecting member includes anchoring a first end of an at-least-partially-flexible connecting member.
15. The method of claim 4 , further comprising compressing the valve-replacement apparatus to a small diameter.
16. The method of claim 15 , further comprising delivering the valve-replacement apparatus to the native valve endoscopically.
17. The method of claim 15 , further comprising delivering the valve-replacement apparatus to the native valve using a catheter.